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Material: The AMBO Ball Nock is made from impact-resistant polycarbonate. It can be used in all fields of archery, with both recurve and compound bows, i.e. leisure archery or target shooting to FITA rules, field archery, 3D, traditionel archery and bowhunting.
Type: The AMBO Ball Nock comes in 2 versions, an insert nock and a pin nock, to accommodate the Easton Pin System.
M (medium) - Insert nock for Easton A/C/E shafts and for all Easton shafts with Uni Bushing.
L (large) - Insert nock for X7 Cobalt and Easton shafts with Super Uni Bushing.
P Pin nock for use with the Easton Pin System for X10, A/C/E , A/C Navigator.
Colors: Black, white, blue, yellow, red, fluorescent red, fl. orange, fl. green.
Ball nocking points come in 3 versions: 1. A spherical stainless steel ball with 3 differently sized through-holes (see illustration above for related string strand numbers of Fast Flite material).
2. A brass stud ball with a through hole of 2.2 mm .
3. Specifically for compound bows: a titanium stud ball with turned end disks as contact points for the release rope.
Availably in two types:
T1: An unslotted titanium disk stud ball
T2: A titanuim stud ball with a 0.6 mm slot for easy insertion of the bowstring strands (see illustration for maximum numbers of strands of the different string materials).
Slotted stud ball:
The slotted stud ball is a good choice for users of compound bows, who do not make their own bowstrings themselves. Just remove the old center serving, thread in the slotted stud ball and apply a new center serving.
The slot in the ball does not affect the ball’s slip identity. The edges are thoroughly rounded by mechanical grinding and then fine-polished. You may, however, fix the loop on the string
in a position where the slot shows backwards – in the direction of the loop– and where it is free of the nock wings.
Quality & Precision
The edges of the through-hole of the stainless steel ball are rounded by grinding with a special tool coated with cubic boron-nitride (CBN) abrasive grain then polished on a machine similar to those used by silversmiths.
The hole itself is not drilled but produced by electric discharge machining (EDM), a process which erodes the material at the molecular level. After EDM, each hole is honed with a set of diamond-coated needles. After the initial production stages, which include grinding of the diameter to an accuracy of 1/1000 mm, each ball undergoes more than half a dozen manually controlled finishing operations. The AMBO ball nocking points are by far the most precise nocking points in the world.